Transparent, beautiful and ultra-flexible mastering compression.

A new class of compression

Unisum is a state-of-the-art mastering compressor based on a novel topology combining impeccable sound with unmatched musical flexibility.

Built in collaboration with experienced mastering professionals, Unsium features clean wideband compression driven by flexible multi-band detection, and extensive control over envelope and transfer curve. Whether you want to add glue or groove, shape the dynamic contours, or solve a challenge in the mix, Unisum helps you achieve your goal with precision and integrity.

“This is the most analog sounding of all my digital compressors. The more aggressive styles, e.g. changing release towards linear, changes the personality of the device without getting artificial or sounding manipulative.

The measurable multi tone intermodulation distortion even at high sample rates is very low and in some cases lower than a competitive analog piece.”

“This is the mastering compressor the world has been waiting for! The level of precision by which you can manipulate the compression characteristics moves Unisum into a different category than any previous analog / digital hardware or plugin. It can be your ultimate transparent mastering compressor, or it can fully unleash your creativity by enabling you to control the most detailed aspects of a mix. This is a must-have plugin, and the most flexible compressor I’ve ever used.”

“Unisum is a game changer. Tone, dimension and groove together with a spectacular sound and no compromises, make it the best software compressor I have. It reminds me of the elegance and musicality of the Cranesong STC-8 but with many more control options. Never heard something similar even with the highest oversampling settings in other plugins.”

“I have to say this compressor has blown me away like plug-ins or hardware rarely do. It just sounds fantastic. Even with minimal amount of compression going on it just makes everything sound great. I can't recommend it highly enough.”

“In a default state, the sound of Unisum has a 'tubey' and airy, wispy quality (...) Then the tweakability is crazy! The side-chain multi-band is such a unique and cool feature. I can really change the character of the compressor with this, as if a whole slew of compressors wrapped in one.

“Although I am an 'analog' guy, I must say that I am impressed by Unisum.
It can handle gentle compression in a very transparent and elegant way, adding a nice depth in the midrange. I was also surprised at how much I could compress the sound without getting any distortion. Really impressive. Having all the parameters that you can think off and even more, this is a clear winner to me.”

Add polish and cohesive glue to any mix whether classical, pop, or EDM

Shape Attack and Release curves for perfect grab and movement

Tailor every part of the compression response for a unique fit with the material

Solve challenges in a mix with the highest possible precision and fidelity

Key Features

Exceptionally clean compression

One of Unisum’s most compelling traits is the incredible clean compression. With extremely low intermodulation distortion and practically no digital aliasing, Unisum rivals high-end analog gear. Combined with musical level detection, program dependent envelopes, and smooth gain reduction Unisum delivers transparent compression that is perfectly suited for program material demanding the highest fidelity.

Wideband compression with multi-band control

At the heart of Unisum is a unique multi-band detection path offering immense control. The sidechain is split into 3 frequency bands, each with parallel RMS and Peak detectors. The result is efficient yet musical level tracking with flexibility to tailor the response for a perfect fit with any track. You can also set up frequency dependent Threshold, Ratio, and Attack/Release.. all without destructive crossovers in the audio path.

Full creative control

In stark contrast to automated “AI” tools and oversimplified one-size-fits-all compressors, Unisum provides detailed controls that empower you to respond with great precision to what your ears and emotions tell you is needed for the most impactful sound. Adjust the Attack and Release curves and set up transient specific timings. Shape the transfer curve. Filter and limit the channel linking, and much more.

Character when you need it

Unisum stays clean, until you tell it not to. Engage the HYGGE circuit to add mastering grade transformer and tube warmth. Being highly level and frequency dependent in nature, HYGGE imparts subtle weight and thickness to any sound. With Memory Effect you can mimic the program dependent behaviour of opto compressors, or inverse it for a very different feel. Or you might want to crank the RMS detector speed for some low end bite.